An energy and cost efficient majority-based RAM cell in quantum-dot cellular automata

Khosroshahy, Milad Bagherian; Moaiyeri, Mohammad Hossein; Navi, Keivan; Bagherzadeh, Nader

doi:10.1016/j.rinp.2017.08.067

Cited by 61 publications

(42 citation statements)

References 33 publications

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“…If many cells are put beside each other, QCA binary wire can be represented. Due to the coulombic interaction, the polarization of the input cell (drive cell) can (1)…”

Section: Qca Fundamentalsmentioning

confidence: 99%

“…CMOS-based devices face lots of challenges including short-channel effects, hard lithography and significant increase in power dissipation [1]. QCA is one of the most important nanotechnologies presented as a possible alternative to CMOS-based devices [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…The idea of QCA was first noted in 1993 by Lent et al [4]. QCA was implemented physically by four techniques: magnetic, metal island, molecular and semiconductor [1] and recently many papers discussed new implementation developments [5,6]. The basic blocks in QCA are an inverter and majority voter.…”

Section: Introductionmentioning

confidence: 99%

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An energy-efficient RAM cell based on novel majority gate in QCA technology

2019

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The limitations of the Complementary Metal-Oxide-Semiconductor (CMOS) technology such as the dissipated power, hard lithography, and short channel effects, led the researchers to look for an alternative technology. The unique properties of the QCA technology such as low dissipated power, speed, and the small feature size were the reason for considering it as a CMOS alternative in this work. In this paper, a new layout for five input single layer majority gate is proposed. The proposed majority gate is used in order to carry out new low power RAM cell with the ability to set the output or to reset it. Designing a cost efficient memory cell is an important issue because it is a brick unit for the whole RAM that considers the most essential component in the digital system. The proposed RAM cell shows improvement around 7% in terms of cost function and a noticeable reduction in switching energy. The QCADesigner tool is used in this work for circuit design and verification while the QCAPro tool is used for power analysis.

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“…If many cells are put beside each other, QCA binary wire can be represented. Due to the coulombic interaction, the polarization of the input cell (drive cell) can (1)…”

Section: Qca Fundamentalsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An energy-efficient RAM cell based on novel majority gate in QCA technology

2019

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“…QCA wire is used to carry out the binary data transformation from the input cell to the output. Since the wire in the QCA consists of an array of cells, the binary data will be transferred to the output cell according to the principle of electronic repulsion [21]. The QCA wire is presented in two configurations; normal and rotated, as explained in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

Optimum multiplexer design in quantum-dot cellular automata

Alkaldy

Majeed

Zainal

et al. 2020

IJEECS

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Quantum-dot Cellular Automata (QCA) is one of the most important computing technologies for the future and will be the alternative candidate for current CMOS technology. QCA is attracting a lot of researchers due to many features such as high speed, small size, and low power consumption. QCA has two main building blocks (majority gate and inverter) used for design any Boolean function. QCA also has an inherent capability that used to design many important gates such as XOR and Multiplexer in optimal form without following any Boolean function. This paper presents a novel design 2:1 QCA-Multiplexer in two forms. The proposed design is very simple, highly efficient and can be used to produce many logical functions. The proposed design output comes from the inherent capabilities of quantum technology. New 4:1 QCA-Multiplexer has been built using the proposed structure. The output waveforms showed the wonderful performance of the proposed design in terms of the number of cells, area, and latency.

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“…Most of these papers were searching for an optimal form. Researchers have been paying attention to the design of the memory cell as one of the important circuits in QCA technology [2][3][4][5][6][7], and a well-optimized flip-flop structure [8][9][10], in addition to counter circuits [9][10][11]. This paper introduced an optimal T flip-flop structure with a super degradation in cell counts and used it to design highly efficient N-bit counter circuits.…”

Section: Introductionmentioning

confidence: 99%

Synchronous Counter Design Using Novel Level Sensitive T-FF in QCA Technology

Majeed

Alkaldy

Zainal

et al. 2019

JLPEA

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The quantum-dot cellular automata (QCA) nano-technique has attracted computer scientists due to its noticeable features such as low power consumption and small size. Many papers have been published in the literature about the utilization of this technology for de-signing many QCA circuits and for presenting logic gates in an optimal structure. The T flip-flop, which is an essential part of digital designs, can be used to design synchronous and asynchronous counters. This paper presents a novel T flip-flop structure in an optimal form. The presented novel gate was used to design an N-bit binary synchronous counter. The QCADesigner software was used to verify the designed circuits and to present the simulation results, while the QCAPro tool was used for the power analysis. The proposed design required minimal power and showed good improvements over previous designs.

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An energy and cost efficient majority-based RAM cell in quantum-dot cellular automata

Cited by 61 publications

References 33 publications

An energy-efficient RAM cell based on novel majority gate in QCA technology

An energy-efficient RAM cell based on novel majority gate in QCA technology

Optimum multiplexer design in quantum-dot cellular automata

Synchronous Counter Design Using Novel Level Sensitive T-FF in QCA Technology

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